Former Vice President Joe Biden removes his jacket at the Eakins Oval in Philadelphia on Saturday as he formally kicks off his 2020 White House bid. (Tom Williams/CQ Roll Call)

ALLENTOWN, Pa. — Three times President Donald Trump mentioned former Vice President and Pennsylvania native Joe Biden, the 2020 Democratic front-runner, and three times his crowd of loyalists booed at a rally Monday night in Lycoming County. But it is swing voter-rich places, like the one here in Lehigh County, two hours to the southeast, that will help determine who is president in January 2021.

Both chambers are moving to reverse tax law changes that unintentionally subjected investment earnings of low-income children to the same tax rates paid by wealthier households.

The House, which under the Constitution must originate revenue bills, plans to act later this week on a broader retirement savings bill that would eliminate the full set of changes to the so-called kiddie tax made by Republicans in the 2017 tax overhaul.

MONTOURSVILLE, Pa. — There was little political risk for President Donald Trump when Air Force One rolled to a stop in front of a series of tree-dotted peaks his campaign used a backdrop for a campaign rally to boost a Republican candidate who is almost assured a House seat.

Supporters of President Donald Trump, pose for a picture while waiting to enter his rally at the Williamsport Regional Airport in Montoursville, Pa., on Monday. (Photo By Tom Williams/CQ Roll Call)

MONTOURSVILLE, Pa. — Air Force One landed here Monday evening ahead of a special House election as AC/DC’s “Thunderstruck” blared inside an airport hangar. Minutes later, with Air Force One parked in front of small tree-lined peaks, President Donald Trump issued a thunderous endorsement of a GOP House candidate and attack on Democrats.

And repeatedly, the friendly audience showered Trump with chants of “four more years!” And during one rare quiet moment, a man shouted, “We love you, Trump!” Minutes later, the entire crowd, which did not quite fill the hangar, shouted in unison, “We love Trump!”

Supporters of President Donald Trump, pose for a picture while waiting to enter his rally at the Williamsport Regional Airport in Montoursville, Pa., on Monday. (Tom Williams/CQ Roll Call)

WILLIAMSPORT, Pa. — The blue and red banners flapped in a late-spring morning breeze along U.S. Highway 15 here, greeting passersby with a simple but unmistakable message: “President Trump is coming.” It is a message Pennsylvanians are likely to see a lot of before the 2020 election, as the Keystone State becomes one of the campaign’s centers of gravity.

Hours before Air Force One touched down at Williamsport International Airport in neighboring Montoursville, Terri Bruner of Geneva, Ohio, had set up her traveling roadside merchandise stand at the Ridgemont Motel. She was peddling the usual “Make America Great Again” gear, complete with one T-shirt depicting a Trump supporter urinating on the CNN logo and an assortment of pink Trump gear ostensibly aimed at women.

Senate Finance Chairman Charles E. Grassley announced the creation of five task forces charged with delving into what to do about 42 myriad tax breaks that continually get turned on and off by Congress, ranging from an incentive to sell cleaner-burning biodiesel fuel for trucks to a deduction for mortgage insurance premiums.

The joint announcement by the Iowa Republican and Oregon Democrat Ron Wyden, the committee’s ranking member, comes 16 and a half months after 26 tax “extenders” expired at the end of 2017. Grassley said the task force is charged with coming up with solutions by the end of June, including whether to consolidate or change certain provisions, make them permanent or allow them to lapse.

The action takes to the next level a five-week-long dispute between the administration and Neal, D-Mass., who first asked on April 3 for six years of Trump’s personal tax returns, the returns for eight Trump companies and other tax information.

Income tax paid by Sen. Kamala Harris, D-Calif., and her husband increased by more than $14,000 because of the 2017 tax overhaul, a CQ Roll Call analysis found. (Bill Clark/CQ Roll Call file photo)

ANALYSIS — The 2020 Democratic presidential candidates who’ve released last year’s tax returns thus far are well-off enough to represent less than one-fifth of the taxpaying public, with incomes ranging from $100,000 to $2 million.

But their experiences are probably typical of many voters in similar circumstances: married couples with young children tend to do well under the 2017 tax law, though it helps to reside in lower-tax states.

President Donald Trump, here in the Roosevelt Room at the White House in January, is refusing to budge on a range of issues. And he'll head into the weekend with little ground gained on any one of them. (Chip Somodevilla/Getty Images file photo)

ANALYSIS — Donald Trump’s my-way-or-the-highway negotiating style was on full display this week. But the president is set to end the week with little gained on some big campaign promises.

From stalled trade talks with China to a new immigration reform plan to his legal battle with House Democrats over the special counsel’s Russia election meddling report and their desire to hear from his advisers, the president and his team again showed how they often take a position and hunker down. The message is clear: Adhere to the Trump way or prepare for war — be it one of the global trade variety or one over the Constitution.